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11 Technical Difficulties of Horizontal Drilling in Trenchless Construction

11 Technical Difficulties of Horizontal Drilling in Trenchless Construction

In trenchless construction, some technical difficulties will be encountered during horizontal drilling. Generally speaking, these 11 aspects are included. 1. Stuck drill Sticking is a common technical difficulty in hole reaming. If stuck, analyze and identify the cause and then deal with it. 1. If the drill is stuck in contact with the underground pipeline, withdraw the drill bit, drag …

Design Of Guide Hole In Trenchless Construction

Design Of Guide Hole In Trenchless Construction

The pilot hole is the first step in the construction of trenchless engineering, followed by reaming. Managed jobs are based on this. Whether the quality of the guide hole, such as the turning radius of the deflection section, the smoothness of the trajectory curve, and the position of avoiding underground obstacles, is directly related to the success or failure of …

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